Window-washer



(N0 Model.)

B. A. STAUPFER. WINDOW WASHER.

No. 531,754. Patented Jan. 1, 1895.

mm; 7m M5,;

annals Pnms cu, P-ovamuou WASHINGTO UNITED STATES PATENT ELLA A. STAUFFER, OF CHICAGO, ILLINOIS.

WINDOW-WASHER.

SPECIFIOATION forming part of Letters Patent No. 531,754, dated January 1, 1895.

Application filed August 15, 1894. Serial No. 520,365. (No model.)

To all whom it may concern.-

Be it known that I, ELLA A. STAUFFER, a citizen of the United States, residing at Ohicage, county of Cook, and State of Illinois, have invented certain new and useful Improvements in lVindow-Washers, which are fully set forth in the following specification, reference. being bad .to the accompanying drawings, forming a part thereof.

This invention is an improvement upon an invention for the same purpose for which Letters Patent were granted to me August 19, 1890, No. 434:,73et.

In the drawings:-Figure 1 is a vertical section through the sill of a window casing to which my invention is attached, the parts constituting the invention being shown in side elevation except as to certain details which are shown in vertical section at planes indicated by the lines ll on Fig. 2. Fig. 2 is a plan of the devices which are shown in Fig. 1, some parts being broken away to disclose others beneath them. Fig. 3 is a detail section at the line 3-3 bn Fig. 1. Fig. 4 is an enlarged detail perspective of the parts constituting a two-movement joint which connects the scrubber to the operating arm, one piece of the socket-plate being removed. Fig. 5 is a section of said joint at the line 55 on Fig. 1.

A represents the sill of the window.

Bis the bottom rail of the sash; B", the glass therein.

0 is the foundation board of my machine.

0 C are clamping jaws which extend through slots 0 c in the foundation board 0, protruding downward below the latter to grasp the sill, and protruding upward to receive the clamping screw G which passes freely through the upper end of the jaw C, which is inside the window, and is threaded and screwed through the jaw 0, outside the window. At the other end, the screw has the crank handle 0 by which it is rotated to effect the clamping of the machine to the window frame or sill. T

On the outer end of the foundation board 0, there is mounted a post D, which is swiveled at its lower end in the socket D, which is secured rigidly to the plank O. The post 1) is thus adapted to turn about its own vertical axis, and for the purpose of turning it and thereby adjusting the parts carried by it, it is provided with a handle D which is rigidly secured to it at (1 and thence bent down toward the plank C, and then inward toward the window in substantially horizontal direction, extending at this portion over the notched segment 0 which is secured rig idly to the plank O, the notches being adapted 6o toafford lodgmentfor the arm D and securing the post D in its angular adjustment in its socket. The arm D is sufficiently elastic between its point of attachment to the post D and the point where it lodges in the notches of the segment, to permit it to be sprung up out of the latter for the purpose of shifting to a different position.

E is the scrubber or wiper which operates upon the window. It is connected to the inner end of its operating arm E by a double movement joint of a character sometimes termed a universal joint, but which is not such in fact, because it does not permit rotation of the scrubber about the axis of the arm, but only permits hinge movement in two directions at right angles to each other; the pivot e, which connects the handle to the intermediate link E being horizontal, and the pivot e of the link E to the scrubber back being vertical. For convenience, and as a means of afiording a very strong and secure joint at this latter pivot, I make the bracket E, which is fastened upon the back of the scrubber, and forms one member of the vertical joint in two pieces a and E, divided at a vertical plane through the axis of the vertical pivot, and the joint is connected together by applying the pivot to one of the members, and afterward securing the other member in place embracing the pivot.

The arm E extends through a suitable slot in the upright post D, and is pivoted thereto, being provided with a long slot a, through which the pivot pin E passes, so that the arm has a considerable range of longitudinal adjustment of its pivot. To the rear end of the arm at an eye E, I secure two spiral springs F F, one extending upward and the other downward, and both being attached to the post D at suitable eyes ff. These springs are of substantially equal length and strength, and tend both to elastically resist extension and thereby to protrude the arm forward,-

that is, towardthe windowyand to hold the sc'rubberwith considerable pressure against the window. i i

'VVhen'the arm E' is, horizontal, the two springs being equally extended, operate in an equal degree toprodnce thepressure of, the scrubber upon the window. When the scrub 7, "her is operating at a; point below'the'horizontal position, as shown in dotted line in Fig.1, the lower springis extended'and exerts the greater pressure,:and in like manner, when the scrubberis operating at a point above the horizontal position of the arm, the

- .npper spring is more extended and exerts the greater pressure, In each case, it .willbe:

' seenthat the spring which pulls more nearly f in the direction of the length of the arm, -or

more nearly directly toward thewindow, is

theone whose pressure is chiefly instrumental impressing the scrubber against the window,

so that, practically, the pressureis kept uniform throughout all positions of the scrubber V on the window.

' underthe window when the device is mounted Gisa socket plate which issecured to the foundation board-G, intermediate the "clamping jaws G O',*and designed to be directly on the sill.

" of which" there is secured a handle J, which V f extends inside the window,' while"into the "arm K, which extends" outside. the window.

other end of the bossthere is secured a lover The said part H and its two arms J and K constitute a lever which at its rear end has pivotally attached to it the link L, which extends to the scrubber arm E and is pivoted thereto at Z, intermediate the pivot of the scrubber and its pivot to the post D.

It will be understood that the parts thus far described are adapted to hold the scrubber with yielding pressure against the outer surface of the window, and to operate it vertically upon that surface by the vertical oscillation of the handle J, which will be operated inside the window.

In order to adapt the device to reach over considerable extenthoriiontally as well as to operate vertically on the window, the operator will use the arm D reaching through the window below thesash for that purpose, and swinging the arm horizontally, thereby rotating the post D in its socket and carrying the scrubber laterally to desired position, the arm D being lodged in the proper notch in the segment to retain it in such position until a vertical strip of the window has been cleaned by operating the handle J, whereupon it will be shifted to another notch and adapted to reach and clean another strip of the outer surface of the window.

Since the fulcrum of the lever J K is verti cally pivoted or swiveled to the socket-plate G, and is turned about such vertical pivot to carry the scrubber horizontaliyto different I positions, a swivel connection is necessaryin the link L which connects the lever armK Lto the scrubber operating arm 'E'. Such I swivel connection is represented in, Fig. 3, comprising a fitting'L', which terminates the V a link L at; thelower end,-'andafitords themeans V l for pivotal connection with theleverarni The upper end of this fitting is axially. socketed,and receives thelower end of the mainportioniot thelink L, which isprovided with 7 an annular groove :L,'into which a 7 pin Z which is set intothe terminal fitting L, pr'o trudesto detain the fitting and permit it to rotate onthe main portion of the link L." j

- I claim 1.. Ina window washingmachine, in comb? nation with the support extended outward from the sill and the upright rotatable post; supported thereon, the scrubber and itsop crating arm having sliding pivotal support upon saidpost, saidl'scrubber'beingconnected V ,7

.90 r otal action in two directions only, both trans l to said arm by a joint which provides for piv verse to the-armand toeach other: substantially as setforth.

'2. In a window washer, in combinationwith V the horizontal support adapted to be secured to thesill and projecting outward therefrom, i and the post which extends upward from 581K111 support the scrubber and itsoperating arm having sliding pivotalconnection to the post, and two extejnsiblesprings both connected to too the outer end of the arm, one of saidsprings being: attached to the post, one above, and

the other below, the pivot of the arm to the" I post: substantially as set forth. 7

3. In combination with the horizontal support adapted to be secured to the sill and projecting outward therefrom, the post D, erected and rotatable upon the outer end of said horizontal support; the scrubber and its operating arm having sliding pivotal support on the post; the lever J K fulcrumed on the horizontal support substantially at the vertical plane of the window; and the linkL which connects its outer end to the scrubber-operating arm, said link comprising a swivel-joint between its pivotal connections: substantially as set forth.

4:. In a window washer, in combination with the scrubber and its operating arm pivotally jointed thereto, and a fulcrum for such arm outside the window and adapted to be fixed with respect to the window casing; a lever having its fulcrum swiveled or vertically pivoted substantially in the vertical plane of the sash underneath the same and having an arm extending outside the window, and a link connecting said arm to the scrubber-operating arm: substantially as set forth.

5. .In a window washer, in combination with the scrubber, its operating arm and the fulcrum support for the same; and means for rotating such support about a vertical line through the fulcrum of the operating arm thereon; the lever J K, and the link L conor handle D adapted to rotate it, combined with the notched segment 0 secured to the horizontal support: substantially as set forth.

In testimony whereof I have hereunto set I 5 my hand, at Chicago, Illinois, this 10th day of August, 1894.

ELLA A. STAUFFER.

Witnesses CHAS. S. BURTON, JEAN ELLIOTT. 

